Hysteresis electrical motors with bulk melt-textured YBCO

Kovalev, L.K.; Ilushin, K.V.; Penkin, V.T.; Kovalev, Konstantin; Semenikhin, V.S.; Poltavets, V. N.; Larionoff, A. E.; Gawalek, W.; Habisreuther, T.; Strasser, T.; Shikov, A.K.; Kazakov, E.G.; Alexandrov, V. V.

doi:10.1016/s0921-5107(97)00330-9

Cited by 32 publications

(12 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The mechanical torque, , is given by (12) where is the mechanical speed, given by (13) Replacing (11) and (13) in (12) gives (14) which is consistent with [26] and [30], where a relation between the torque and hysteresis losses proportional to is reported.…”

Section: A Hts Hysteresis Motorsupporting

confidence: 60%

Experimental Characterization of a Conventional (Aluminum) and of a Superconducting (YBCO) Axial Flux Disc Motor

Inácio

Pina

Luis

et al. 2011

IEEE Trans. Appl. Supercond.

View full text Add to dashboard Cite

An equivalent model and electromechanical characteristics for the disk motor was obtained based on the Steinmetz parameters. This paper describes a series of tests conducted on an axial flux motor, equipped with an aluminum rotor disc and an YBCO high temperature superconducting rotor disc, at liquid nitrogen temperature (77 K). The rotating magnetic field was produced by a four-pole, three-phase stator winding, at 50 Hz. At asynchronous permanent regime, Steinmetz-type models are able to describe both motors' behavior. From the performed tests, the parameters of both motors' models were deduced. A variable load was used to obtain both motor's characteristics (conventional and superconducting). Experimental obtained characteristics of both motors are compared with the ones predicted from parameters' calculation. The HTS motor provides high efficiency then the conventional ones.Index Terms-Axial flux disc motor, HTS materials, YBCO.

show abstract

Section: A Hts Hysteresis Motorsupporting

confidence: 60%

Experimental Characterization of a Conventional (Aluminum) and of a Superconducting (YBCO) Axial Flux Disc Motor

Inácio

Pina

Luis

et al. 2011

IEEE Trans. Appl. Supercond.

View full text Add to dashboard Cite

show abstract

“…T HE potential of bulk melt-processed YBa Cu O (YBCO) single domains to trap significant magnetic inductions at 77 K makes them particularly attractive for a variety of engineering applications including permanent magnets, magnetic bearings and brushless ac machines [1]- [4]. In many topologies to be envisaged for designing an efficient electrical motor based on superconductors, the bulk YBCO piece is permanently magnetized parallel to its -axis and placed in the machine rotor [3].…”

Section: Introductionmentioning

confidence: 99%

Behavior of bulk melt-textured YBCO single domains subjected to crossed magnetic fields

Vanderbemden

Dorbolo

Babu

et al. 2003

IEEE Trans. Appl. Supercond.

View full text Add to dashboard Cite

Abstract-We have experimentally investigated the crossed magnetic field effects on bulk melt-processed YBCO single domains. The samples were first permanently magnetized along their -axis and then subjected to several cycles of a transverse magnetic field parallel to the planes. The magnetic properties along the and directions were simultaneously measured using a couple of orthogonal pick-up coils as well as a Hall probe placed against the sample surface. The effects of both sweep amplitude and polarity were investigated. Field sweeps of alternate polarities are shown to affect the decay of the -axis magnetization much more strongly than field sweeps of unique polarity do. However, the -axis magnetization does not show any saturation even after a large number of field sweeps. Next, a micro-Hall probe scanning system was used to measure the distribution of magnetic induction over the top surface of the single domain subjected to the same combination of magnetic fields. The results are shown to be consistent with those determined with the sensing coils and bring out the role played by geometric effects.

show abstract

“…Magnetic levitation based on the trapping field property of superconductors has been considered as the complementary substitution of conventional ball or friction bearings [8,9], but it is also an intrinsic effect that can be performed by the same interaction that drives the motor [10,11], simplifying the design of the motor. Conventional hysteresis motors have been improved in power density by up to five times by using superconducting pellets as the magnetic material [12].…”

Section: A Working Methods For Sclpmsmentioning

confidence: 99%

Low-power superconducting motors

Granados¹,

López²,

Bosch³

et al. 2008

Supercond. Sci. Technol.

View full text Add to dashboard Cite

Since the discovery and development of adequate superconducting materials, the development of motors has been a challenge for applications. The basis of design, however, has been the substitution of copper wires by superconducting tapes in coils in order to obtain a higher working field, thus improving power density and efficiency.In the case of high-power motors, the benefit is clear. The cost of the materials, cryogenics and building procedures could be assumed by the clear benefit in size, weight, efficiency, and, in some cases, reliability. Otherwise, low-power motors require a different treatment. Superconducting wires are insufficiently developed to produce small coils for a high field with the adequate shape. Air gaps are more critical than in large motors and cost has a major impact. Only very specific applications, in which standard technology cannot give a reliable and satisfactory solution, could benefit from superconductivity. This paper summarizes our work realized by applying superconducting pellets in low-power motors, thus improving their power density, reliability, dynamics and regularity. Applications to cryogenics, control and high speed have been our focus.

show abstract

Hysteresis electrical motors with bulk melt-textured YBCO

Cited by 32 publications

References 0 publications

Experimental Characterization of a Conventional (Aluminum) and of a Superconducting (YBCO) Axial Flux Disc Motor

Experimental Characterization of a Conventional (Aluminum) and of a Superconducting (YBCO) Axial Flux Disc Motor

Behavior of bulk melt-textured YBCO single domains subjected to crossed magnetic fields

Low-power superconducting motors

Contact Info

Product

Resources

About